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René Descartes — Historical oil portrait of Frans Hals.
Historical oil portrait of Frans Hals.

Philosophy · Simulation

René Descartes

1596–1650 · Philosopher and mathematician

Even if we doubt everything, what can we know?

He explored the basis of our knowledge through methodical ideas of doubt, dreams, and illusory experience; brought the distinction between mind and body to the center of the debate.

Contribution: making doubt a method

In the Meditations dated 1641, Descartes initiates his search for definitive knowledge through the sometimes deception of the senses and the experience of dreams. The assumption that an illusory force guides our experience is a thought experiment used to test accepted beliefs. The existence of thinking activity even when doubting plays a central role in his attempt to ground his self-knowledge. The goal is not to constantly reject everything, but to find a solid start.

Mind, body and virtual reality

Descartes treats mental experience and physical extension as different qualities. This approach is still a reference in the debate about whether consciousness can be explained only in terms of physical processes. Our connection to the topic of simulation is the possibility of illusory experience: How can we determine the quality of the external world when looking through experience? This link is the modern interpretation; It does not mean that Descartes developed a theory of computer simulation.

Border and opposition

The doubt scenario is not evidence that the outside world is wrong. The mind-body distinction cannot be presented as a result confirmed by neuroscience. The relationship between bodily processes and experience is open to different philosophical and scientific explanations. It is more productive to read Descartes's contribution as a method that reveals the basis of our knowledge claims, rather than as a final answer.

Works, articles and further reading

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Meditationes de prima philosophia · 1641 ↗Felsefi eser / Latince birincil metinStanford: Descartes' theory of knowledge ↗academic statement

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